Package io.debezium.connector.postgresql

Class PostgresChangeRecordEmitter

java.lang.Object

io.debezium.pipeline.AbstractChangeRecordEmitter<PostgresPartition,TableSchema>

io.debezium.relational.RelationalChangeRecordEmitter<PostgresPartition>

io.debezium.connector.postgresql.PostgresChangeRecordEmitter

All Implemented Interfaces:

ChangeRecordEmitter<PostgresPartition>

public class PostgresChangeRecordEmitter
extends RelationalChangeRecordEmitter<PostgresPartition>

Emits change data based on a logical decoding event coming as protobuf or JSON message.

Author:

Horia Chiorean (hchiorea@redhat.com), Jiri Pechanec

Nested Class Summary

Nested classes/interfaces inherited from interface io.debezium.pipeline.spi.ChangeRecordEmitter

ChangeRecordEmitter.Receiver<P extends Partition>

Field Summary

Fields

Modifier and Type	Field	Description
private final Map<String,Object>	cachedOldToastedValues
private final PostgresConnection	connection
private final PostgresConnectorConfig	connectorConfig
private static final org.slf4j.Logger	LOGGER
private final ReplicationMessage	message
private final PostgresSchema	schema
private final TableId	tableId

Fields inherited from class io.debezium.relational.RelationalChangeRecordEmitter

PK_UPDATE_NEWKEY_FIELD, PK_UPDATE_OLDKEY_FIELD

Constructor Summary

Constructors

Constructor	Description
PostgresChangeRecordEmitter(PostgresPartition partition, OffsetContext offset, Clock clock, PostgresConnectorConfig connectorConfig, PostgresSchema schema, PostgresConnection connection, TableId tableId, ReplicationMessage message)

Method Summary

Modifier and Type	Method	Description
private Object[]	columnValues(List<ReplicationMessage.Column> columns, TableId tableId, boolean refreshSchemaIfChanged, boolean sourceOfToasted, boolean oldValues)
void	emitChangeRecords(DataCollectionSchema schema, ChangeRecordEmitter.Receiver<PostgresPartition> receiver)
protected void	emitTruncateRecord(ChangeRecordEmitter.Receiver receiver, TableSchema tableSchema)
protected Object[]	getNewColumnValues()
protected Object[]	getOldColumnValues()
Envelope.Operation	getOperation()
private int	getPosition(String columnName, Table table, Object[] values)
private boolean	hasMissingUntoastedColumns(Table table, List<ReplicationMessage.Column> columns)
private Optional<DataCollectionSchema>	newTable(TableId tableId)
private void	refreshTableFromDatabase(TableId tableId)
private boolean	schemaChanged(List<ReplicationMessage.Column> columns, Table table)
protected boolean	skipEmptyMessages()
private DataCollectionSchema	synchronizeTableSchema(DataCollectionSchema tableSchema)
private Table	tableFromFromMessage(List<ReplicationMessage.Column> columns, Table table)
(package private) static Optional<DataCollectionSchema>	updateSchema(Partition partition, io.debezium.spi.schema.DataCollectionId tableId, ChangeRecordEmitter<PostgresPartition> changeRecordEmitter)

Methods inherited from class io.debezium.relational.RelationalChangeRecordEmitter

emitCreateRecord, emitDeleteRecord, emitReadRecord, emitUpdateAsPrimaryKeyChangeRecord, emitUpdateRecord

Methods inherited from class io.debezium.pipeline.AbstractChangeRecordEmitter

getClock, getOffset, getPartition, skipMessagesWithoutChange

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

LOGGER

private static final org.slf4j.Logger LOGGER

message

private final ReplicationMessage message

schema

private final PostgresSchema schema

connectorConfig

private final PostgresConnectorConfig connectorConfig

connection

private final PostgresConnection connection

tableId

private final TableId tableId

cachedOldToastedValues

private final Map<String,Object> cachedOldToastedValues

Constructor Details

PostgresChangeRecordEmitter

public PostgresChangeRecordEmitter(PostgresPartition partition,
 OffsetContext offset,
 Clock clock,
 PostgresConnectorConfig connectorConfig,
 PostgresSchema schema,
 PostgresConnection connection,
 TableId tableId,
 ReplicationMessage message)

Method Details

getOperation

public Envelope.Operation getOperation()

emitChangeRecords

public void emitChangeRecords(DataCollectionSchema schema,
 ChangeRecordEmitter.Receiver<PostgresPartition> receiver)
                       throws InterruptedException

Specified by:

emitChangeRecords in interface ChangeRecordEmitter<PostgresPartition>

Overrides:

emitChangeRecords in class RelationalChangeRecordEmitter<PostgresPartition>

Throws:

InterruptedException

emitTruncateRecord

protected void emitTruncateRecord(ChangeRecordEmitter.Receiver receiver,
 TableSchema tableSchema)
                           throws InterruptedException

Overrides:

emitTruncateRecord in class RelationalChangeRecordEmitter<PostgresPartition>

Throws:

InterruptedException

getOldColumnValues

protected Object[] getOldColumnValues()

Specified by:

getOldColumnValues in class RelationalChangeRecordEmitter<PostgresPartition>

getNewColumnValues

protected Object[] getNewColumnValues()

Specified by:

getNewColumnValues in class RelationalChangeRecordEmitter<PostgresPartition>

synchronizeTableSchema

private DataCollectionSchema synchronizeTableSchema(DataCollectionSchema tableSchema)

columnValues

private Object[] columnValues(List<ReplicationMessage.Column> columns,
 TableId tableId,
 boolean refreshSchemaIfChanged,
 boolean sourceOfToasted,
 boolean oldValues)
                       throws SQLException

Throws:

SQLException

getPosition

private int getPosition(String columnName,
 Table table,
 Object[] values)

newTable

private Optional<DataCollectionSchema> newTable(TableId tableId)

refreshTableFromDatabase

private void refreshTableFromDatabase(TableId tableId)

updateSchema

static Optional<DataCollectionSchema> updateSchema(Partition partition,
 io.debezium.spi.schema.DataCollectionId tableId,
 ChangeRecordEmitter<PostgresPartition> changeRecordEmitter)

schemaChanged

private boolean schemaChanged(List<ReplicationMessage.Column> columns,
 Table table)

hasMissingUntoastedColumns

private boolean hasMissingUntoastedColumns(Table table,
 List<ReplicationMessage.Column> columns)

tableFromFromMessage

private Table tableFromFromMessage(List<ReplicationMessage.Column> columns,
 Table table)

skipEmptyMessages

protected boolean skipEmptyMessages()

Overrides:

skipEmptyMessages in class RelationalChangeRecordEmitter<PostgresPartition>